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A certain elementXhas four isotopes.
What is the average atomic mass of elementX?
You are hard at work separating diethyl ether and toluene by simple distillation. Your lab partner unfortunately spills some sodium chloride in the distillation mixture. Is simple distillation still appropriate or should you switch to fractional d..
Question- Which of the following is NOT a factor in determining the biological effects of radiation exposure. The ionizing ability of the radiation
What is the proper coefficient for water when the following equation is completed and balanced for the reaction in basic solution
if the total amount of energy emitted by a carbon sample is 1.98x10^5 J, determine the number of carbon atoms present in the sample, assuming that each atom emits one photon
you need to make 1.00 kg of a 22.5 ammonium chloride solution. how many grams of ammonium chloride do you use? what
Pentan-2-ol reacts with tosylate/nucleophile and the following: Hydroxide, cyanide, bromide, sodium propoxide and ammonia. What are the products from each? Then 2-methylpentan-2-ol reacts with the same substances. What are the products
Question- Explain how you would prepare a 0.01 M strength, pH = 9.2 buffer. Specifically list the compounds and that you would need to prepare this buffer.
Combine 15.0 mL of 0.125 M chromium (III) nitrate and 15.0 mL of 0.125 M ammonium carbonate. What is the limiting reactant
Aluminum has a specific heat of 0.902J/gxC. how much heat is lost when a pieve of aluminum with a mass of 23.984 g cools from a temperature of 415.0 C to a temperature of 22.0 C
A second-order reaction of the type A+2Bâ†'P was carried out in a solution that was initially 0.050 mol dmâˆ'3 in A and 0.030 mol dmâˆ'3 in B. After 1.0 h the concentration of A had fallen to 0.010 mol dmâ
a 325 ml sample of solution contains 25.3 grams of cacl2. calculate the molar concentration of cl- in this
Why are the melting points of sodium halides very high and the melting points of silicon halides very low. Response should include descriptions of the bonding and refernce to the attractive forces that must be overcome in the two types of compound..
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